I probably won't update Nimble to future versions. I would recommend using Leawind's Third Person, which with a little configuration can replace the functionality of Nimble.

Nimble

Nimble is a simple mod that adds smooth transition animation on player perspective changes. It also makes screen rolls when you fly using elytra, and switches perspective when riding a vehicle.

The third-person front view now requires holding F4.

Client-side only. All these features can be disabled or configured if you have installed Kiwi. Besides, in-game config UI is provided if you have installed Cloth Config